Index: wp-admin/includes/template.php
===================================================================
--- wp-admin/includes/template.php	(revision 11553)
+++ wp-admin/includes/template.php	(working copy)
@@ -3424,7 +3424,8 @@
 		$show_on_screen = true;
 	}
 
-	$screen_options = screen_options($screen);
+	add_filter('screen_options', 'screen_options', 1, 2);
+	$screen_options = apply_filters('screen_options', false, $screen);
 	if ( $screen_options )
 		$show_screen = true;
 
@@ -3626,7 +3627,7 @@
 	return $return;
 }
 
-function screen_options($screen) {
+function screen_options($return, $screen) {
 	switch ( $screen ) {
 		case 'edit':
 			$per_page_label = __('Posts per page:');